As for my collection highlights I have numerous Arkham house Lovecraft editions, an ancient edition of the Discoverie of Witchcraft, old Baudelaire prints, a very first edition of Bulwer-Lytton's Zanoni (I am a descendant of his)

As promised, here's some bigger pictures of some of those prints... sorry 'bout the shit quality, it's just a cheap digital camera photo. I don't have a scanner or anything... I included only ones that weren't on that other website:

And here's some more HPL paperback covers. @M69, if possible post some of your Arkham House covers!
_________________"Great holes secretley are digged where earth's pores ought to suffice, and things have learnt to walk that ought to crawl..."

This is a fantastic book, full of woodcuttings, astral
maps, anatomy's relation to chemicals and compounds, early
paintings of greek mythology and it's relation to alchemy.
It is about 600 or so pages and very high quality as it is
from Taschen. I found it at Barnes and Noble for 10 bucks, aside from
My Aleister Crowley reader and naked lunch, it is one
of my alltime favorites.

I just found de Grivy's Witchcraft, Magic and Alchemy at the library. What an absurdly fascinating read. I can barely put it down. He has a ton of rare woodcuts/illustrations from old Occult tomes, along with rich history. Highly recommended.